PHEC50P-S111LF Equivalent & Substitute Parts

Part Overview

The PHEC50P-S111LF is a 50-position D-Sub plug connector manufactured by Amphenol ICC (FCI), designed for through-hole solder termination applications. This connector features center strip contacts with board lock functionality and gold-plated contacts. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where legacy compatibility is required.

Substiute Parts

PHEC50P-S111LF

Amphenol ICC (FCI)In Stock: 757PHEC50P-S111LF Datasheet

Current PartRFQ

1-1734100-9

TE Connectivity AMP ConnectorsIn Stock: 10791-1734100-9 Datasheet

MFR RecommendedRFQ

1734100-5

TE Connectivity AMP ConnectorsIn Stock: 23171734100-5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PHEC50P-S111LF are qualified based on the following critical parameters that must match or be compatible:

• Number of Positions: 50 (exact match required)
• Number of Rows: 2 (exact match required)
• Connector Type: Plug (exact match required)
• Mounting Type: Through Hole (exact match required)
• Termination Method: Solder (exact match required)
• Connector Style: Center Strip Contacts (exact match required)
• Contact Finish: Gold (exact match required)
• Features: Board Lock (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The identified substitute parts are manufactured by TE Connectivity AMP Connectors and maintain all critical electrical and mechanical parameters. Both substitute parts are active products with current availability, addressing the obsolescence status of the original PHEC50P-S111LF.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts 1-1734100-9 and 1734100-5 are active products from TE Connectivity AMP Connectors and provide direct functional equivalence to the obsolete PHEC50P-S111LF. Selection between the two substitutes should be based on packaging and compliance requirements:

1-1734100-9: Supplied in bulk packaging with RoHS compliance certification. Suitable for applications requiring standard RoHS compliance.

1734100-5: Supplied in box packaging with ROHS3 compliance certification and REACH unaffected status. Recommended for applications with stringent environmental compliance requirements or where REACH compliance documentation is required.

Both parts maintain identical electrical and mechanical specifications, including the 50-position configuration, through-hole solder termination, center strip contact style, board lock feature, and gold contact finish. The transition from the obsolete PHEC50P-S111LF to either active substitute presents no functional compatibility issues.

Frequently Asked Questions (FAQ)

Q: Can 1-1734100-9 and 1734100-5 be used interchangeably with PHEC50P-S111LF?

A: Yes. Both parts maintain identical electrical and mechanical parameters including position count, row configuration, connector type, mounting method, termination style, contact finish, and board lock feature. The primary differences are packaging format and compliance certifications.

Q: What is the difference between bulk and box packaging for these connectors?

A: Bulk packaging (1-1734100-9) is typically used for high-volume procurement without individual packaging per unit. Box packaging (1734100-5) provides individual unit packaging suitable for controlled inventory management and traceability requirements.

Q: Are there compliance differences between the two substitute parts?

A: Both parts are RoHS compliant. The 1734100-5 carries ROHS3 certification and REACH unaffected status, providing additional environmental compliance documentation. Selection depends on specific regulatory requirements for your application.

Q: Does the contact finish thickness difference affect compatibility?

A: The original part specifies 3.94µin (0.10µm) contact finish thickness, while substitute parts specify flash thickness. Both finishes provide adequate gold plating for solder termination and electrical performance in D-Sub connector applications.

Q: What is the board-to-board designation on the substitute parts?

A: The substitute parts are classified as board-to-board connectors, indicating they are designed for interconnection between printed circuit boards. This designation does not affect compatibility with the original through-hole solder application.